By Sublimation, you can separate salt water from sand !!
and by Evaporation, salt can be separated from water !!
so all three are separated by these two process !!
I think it may be B, a borrowed language. The others don't seem right.
The correct answer is:
C) NAFTA encourages trade between Mexico, U.S. and Canada.
Explanation:
The North American Free Trade Agreement or NAFTA was an agreement signed between Canada, the USA and Mexico on January 1, 1994 establishing a trade bloc between the three.